A totally weird movie

I just saw the movie Proof starring Anthony Hopkins and Gweneth Paltro(?). It was kind of weird and I got a little lost watching it. It was all about whether or not if this chick was crazy and supposedly she was super duper smart. She constructed this mathematical proof or something that could totally change the world. I understood the movie but it just didn't make any real sense as to why they even made it since it was DULL! I hope the next movie that I get from Blockbuster is better than this one.